8results about How to "Contour smoothing" patented technology

The invention relates to a Fourier contour syntax guided remote sensing target detection method, equipment and a medium, belongs to the technical field of remote sensing image target detection, and can effectively detect obviously symmetrical targets such as airplanes or ships in a remote sensing scene lacking contour / target mask labels. According to the invention, in a small sample scene, detection of a target category and positioning of a target can be realized, and a closed contour of the target can also be output. Fourier low-frequency spectrum is used to realize contour coding, and only 128-dimensional descriptors are used to replace traditional discrete contour point prediction. Through a triple Fourier guidance mechanism formed by cyclic alignment loss, low-frequency amplitude regularization and symmetric constraint, the noise interference of a weak supervision false contour is effectively relieved, the model is forced to preferentially learn the global shape and symmetric structure of a target, and the adaptability to scale change, any rotation angle and complex background interference is remarkably improved. And meanwhile, the detection accuracy in a small sample scene is improved, and practical value and theoretical value are both considered.

The invention provides an intelligent rapid tunneling cutting system and a cutting feed method. Intelligent rapid and efficient cutting is achieved through a series of programmable control processes such as cutting feed of a cutting walking system, sliding cutting of a cutting sliding system and telescopic difference compensation of a cutting telescopic mechanism. The method has the advantages that the heading machine body can cut the required roadway shape at a fixed point, the section formed by automatic cutting is relatively flat, the roadway outline is relatively smooth, the outline error of each time of cutting is small, the cutting forming precision can be effectively improved, safe and convenient supporting work and smooth passing of equipment are facilitated, the roadway heading speed is increased, and the working efficiency is improved. And the comprehensive mechanical operation level of the fully-mechanized excavation face is improved, the adaptability of intelligent tunneling development requirements is enhanced, the labor intensity of workers is reduced, and potential safety hazards of underground tunneling operation are reduced.

The embodiment of the present application discloses a method, device and medium for detecting safety hazards in highway tunnels. It belongs to the field of highway tunnel inspection technology and solves the problem that it is difficult to judge the safety hazards of tunnels in a short time. Obtain environmental information and tunnel images in the highway tunnel; determine the correlation between different detection points based on the environmental information, and detect the fire incidence in the highway tunnel based on the correlation, the temperature information corresponding to the different detection points and the preset temperature prediction model; based on the opening and closing operations, amplify and extract the crack features of the tunnel image; based on the pixel grayscale values ​​corresponding to the tunnel image, divide the tunnel image after the crack features are amplified into multiple different connected domains to filter the noise of the tunnel image, and detect the crack conditions of the highway tunnel based on the tunnel image after the noise is filtered; determine the safety hazard situation of the highway tunnel based on the fire incidence and the crack conditions.

The invention discloses a coated high-nickel material and a preparation method and application thereof, the coated high-nickel material comprises a high-nickel material and a coating layer coating the surface of the high-nickel material, and the coating layer is composed of an NASICON fast ion conductor and a metal boride. The coated high-nickel material has high surface ion / electron conductivity, is easy to dissipate heat and has good compatibility with electrolyte.

An image processing method and device, the method comprising: obtaining an infrared image of a thermal target; obtaining a visible light image of the thermal target; obtaining an infrared contour image of the thermal target based on the infrared image; and obtaining a fused image based on the infrared contour image and the visible light image. The fused image obtained by the method has good quality.

The utility model discloses an upward turning type outer handle of an automobile door, and relates to the technical field of automobile accessories. Comprising a mounting eave, a handle body is rotationally connected between the inner walls of the two sides of the mounting eave, a bottom pulling piece is arranged on the bottom side of the handle body, and two side pulling pieces are symmetrically arranged on the two sides of the handle body. Through the arrangement of the traction piece, a user can press the upper position of the traction piece, so that the lower portion of the traction piece can protrude outwards, the user can hold the traction piece from the lower portion to drive the handle body to operate, the handle body can be embedded in the automobile door more smoothly when not used, and the outline of the automobile door is kept smooth; meanwhile, through the arrangement of a pulling bottom piece and a pulling side piece, when the handle body is pulled open, a gap generated between the handle body and the automobile door is blocked, the interior of the transmission device is kept clean, and the handle body is pulled through a traction piece.

The invention relates to a double-side-wall pilot tunnel excavation method for a shallow-buried extremely-soft rock tunnel and a tunnel supporting structure, the cross section of the tunnel is divided into a first part, a second part, a third part, a fourth part, a fifth part, a sixth part, a seventh part and an eighth part, regional small-range excavation is carried out, different regions are alternately and sequentially excavated, and the tunnel supporting structure is formed. The influence on the stability of a stratum soil body can be minimized, disturbance to surrounding rocks is reduced as much as possible, the peripheral contour is smooth, and stress concentration is avoided; therefore, landslide and even collapse of the stratum soil body are effectively prevented, tunnel construction safety is guaranteed, and personal injury to constructors and potential property loss hidden dangers to equipment are eliminated.

This invention discloses an optimization device and method for laser spot edge diffraction, relating to the field of optical instrument technology. The optimization device includes two sets of guiding mechanisms, two sets of driving mechanisms, and two sets of aperture pairs. Each aperture pair includes two opposing aperture plates, the edges of which are used to define the light transmission boundary and have a serrated structure. The driving mechanisms drive the two aperture plates in the same set to move synchronously in opposite directions along the guiding direction. The positions of the two aperture pairs are independently controlled to combine and form different light transmission boundaries. In the optimization method, the positions of the two aperture pairs are adjusted according to the edge morphology of the laser beam to be optimized, and the laser beam is made to pass through the target light transmission boundary for edge intensity modulation. Through the technical solution of this invention, the edge diffraction caused by traditional straight-edge apertures is reduced, and the edge smoothness of the laser beam, the flexibility of light transmission boundary adjustment, the adaptability to different spot morphologies, the shaping consistency, and the processing stability are improved.